Боинг-Боинг (1965)

Bernard, a Paris-based journalist, has carefully built a life supporting three fiancées: one who works for Lufthansa, another for Air France, and the last for British United. His plan is to have each woman visit every third day, allowing him to manage his time with all of them. But when their work schedules unexpectedly change, and they now have alternating days off, Bernard's carefully constructed arrangement begins to fall apart. As his lies are exposed, Bernard’s world unravels in this story about love, deception, and the struggle for balance.